Invalid RsaKeyAlgorithm publicExponent returned

[panva]

crypto.subtle.generateKey({
  name: 'RSA-PSS',
  hash: { name: 'SHA-256' },
  modulusLength: 2048,
  publicExponent: new Uint8Array([0x01, 0x00, 0x01]),
}, false, ['sign', 'verify'])

An RSA-PSS, RSASSA-PKCS1-v1_5, or RSA-OAEP crypto key that's generated or imported is supposed to have an algorithm.publicExponent property that's supposed to be a Uint8Array. ref.

Workerd (and most likely also the workers platform) returns an ArrayBuffer.

cc @jasnell

[jasnell]

Yeah, looks like we get this wrong. Unfortunately it'll need a compat flag to change. We should check all of webcrypto in case there are more of these and update them all at once under the same flag.

[panva]

ping @jasnell

[jasnell]

ah right, yeah forgot about this one. Making a ticket internally to make sure we remember!

[panva]

Fixed in #1268